[FIX] vertical alignment of fields on firefox (opw #590181)
[FIX] vertical alignment of fields on firefox (opw #590181)

havt/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web,havt/openerp-web,akretion/openerp-web,havt/openerp-web,akretion/openerp-web